Home / 128,598,221.60-192,918,586.80-59,580,000.80

Finding the Fourth Proportional to 128,598,221.60, 192,918,586.80 and 59,580,000.80

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Solution

The fourth proportional to 128,598,221.60, 192,918,586.80 and 59,580,000.80 is: 89,379,848.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,598,221.60 : 192,918,586.80 = 59,580,000.80 : x
  2. Step 2: Convert to fraction form
    128,598,221.60/192,918,586.80 = 59,580,000.80/x
  3. Step 3: Cross multiply
    128,598,221.60x = 192,918,586.80 × 59,580,000.80
  4. Step 4: Simplify right side
    128,598,221.60x = 11,494,089,555,878,870
  5. Step 5: Solve for x
    x = 11,494,089,555,878,870/128,598,221.60
  6. Step 6: Final answer
    x = 89,379,848.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.